|The PSA klk3 (Catalog #MBS590045) is an ELISA Kit and is intended for research purposes only. The product is available for immediate purchase.
The PSA klk3 product has the following accession number(s) (GI #4502173) (NCBI Accession #NP_001639.1). Researchers may be interested in using Bioinformatics databases such as those available at The National Center for Biotechnology Information (NCBI) website for more information about accession numbers and the proteins they represent. Even researchers unfamiliar with bioinformatics databases will find the NCBI databases to be quite user friendly and useful.
To buy or view more detailed product information and pricing, please click on the technical datasheet page below:
(Or you can also download the PDF Manual
for complete product instructions).
Please refer to the product datasheet for known applications of a given elisa kit. We\'ve tested the Prostate Specific Antigen (PSA) with the following immunoassay(s):
Typical Testing Data/Standard Curve (for reference only)
Intended Uses: This Human PSA Kit ELISA Kit is to be used for the in vitro quantitative determination of human PSA concentrations in serum and cell culture samples. This kit is intended for LABORATORY RESEARCH USE ONLY and is not for use in diagnostic or therapeutic procedures.
Principle of the Assay: This PSA enzyme linked immunosorbent assay (ELISA) applies a technique called a quantitative sandwich immunoassay. The microtiter plate provided in this kit has been pre-coated with a monoclonal antibody specific for PSA. Standards or samples are then added to the microtiter plate wells and PSA, if present, will bind to the antibody pre-coated on the wells. In order to quantify the amount of PSA present in the sample, a standardized preparation of horseradish peroxidase (HRP)conjugated monoclonal antibody, specific for PSA are added to each well to "sandwich" the PSA immobilized on the plate. The microtiter plate then undergoes incubation, followed by thorough washing of the wells to remove all unbound components. Next, a TMB (3,3\',5,5\' tetramethyl-benzidine) substrate solution is added to each well. The enzyme (HRP) and substrate are allowed to react over a short incubation period. Only those wells that contain PSA and enzyme-conjugated antibody will exhibit a change in colour. The enzyme-substrate reaction is terminated by the addition of a sulphuric acid solution and the colour change is measured spectrophotometrically at a wavelength of 450nm +/- 2nm. In order to measure the concentration of PSA in the sample, this Human PSA ELISA Kit includes a set of calibration standards (6 standards). The calibration standards are assayed at the same time as the samples allowing the operator to produce a standard curve of Optical Density (0.0.) versus PSA concentration (ng/mL). The concentration of PSA in the samples is then determined by comparing the 0.0. of the samples to the standard curve.
Assay Type: Quantitative Sandwich. Prostate Specific Antigen (PSA) or ELISA (enzyme-linked immunosorbant assays) Kits in general, are a valuable research tool for a myriad of applications in a range of scientific settings. Currently, three major types of ELISA formats are used by researchers: sandwich, competitive and indirect. Most commercially available ELISA Kits are sandwich or competitive. Commercially available ELISA Kits contain wells that have been pre-coated with the capture antibody. Please refer to the product manual for the ELISA format of your specific kit.